- Wall graffites
Merge branch 'devel' of https://github.com/otavanopisto/muikku.git into devel
- Friends
- Changed user view url handling
- Fixed workspace wall
Merge branch 'devel' of https://github.com/otavanopisto/muikku.git into
devel

Conflicts:
	muikku/src/main/webapp/user.xhtml
- Fix to workspace wall
Merge branch 'devel' of https://github.com/otavanopisto/muikku.git into devel
- Added parts of the functionality of student management
- Added name null checks to UserController.searchUsers
- Added Friend entity
- Placeholders for represent user and friends until fixed